All India index numbers of area, production and yield of principal crops :  1949-50 to 1985-86/ 
Directorate of Economics and Statistics, Ministry of Agriculture, Government of India 
 - New Delhi :  The Author,  1987 
 - iii, 23p.;  30 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crops--India<br/>Crops yields--India